linux-kernel - Re: [PATCH v3 2/3] phy: qcom-qmp-combo: Add config for SM6350

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Date:   Thu, 12 Jan 2023 23:20:23 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Johan Hovold <johan@...nel.org>
Cc:     Luca Weiss <luca.weiss@...rphone.com>,
        linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/3] phy: qcom-qmp-combo: Add config for SM6350

On 28-12-22, 15:17, Johan Hovold wrote:
> Luca, Vinod,
> 
> On Wed, Nov 30, 2022 at 09:14:28AM +0100, Luca Weiss wrote:
> > Add the tables and config for the combo phy found on SM6350.
> > 
> > Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> > ---
> > Changes since v2:
> > * Drop dp_txa/dp_txb changes, not required
> > * Fix dp_dp_phy offset
> > 
> >  drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 126 ++++++++++++++++++++++
> >  1 file changed, 126 insertions(+)
> > 
> > diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
> > index 77052c66cf70..6ac0c68269dc 100644
> > --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
> > +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
> 
> > @@ -975,6 +1039,19 @@ static const char * const sc7180_usb3phy_reset_l[] = {
> >  	"phy",
> >  };
> >  
> > +static const struct qmp_combo_offsets qmp_combo_offsets_v3 = {
> > +	.com		= 0x0000,
> > +	.txa		= 0x1200,
> > +	.rxa		= 0x1400,
> > +	.txb		= 0x1600,
> > +	.rxb		= 0x1800,
> > +	.usb3_serdes	= 0x1000,
> > +	.usb3_pcs_misc	= 0x1a00,
> > +	.usb3_pcs	= 0x1c00,
> > +	.dp_serdes	= 0x1000,
> 
> I would have expected this to be 0x2000 as that's what the older
> platforms have been using for the dp serdes table so far. Without access
> to any documentation it's hard to tell whether everyone's just been
> cargo-culting all along or if there's actually something there at offset
> 0x2000.
> 
> Vinod, could you shed some light on this as presumably you have access
> to some documentation?
> 
> > +	.dp_dp_phy	= 0x2a00,

No sorry, I dont have access to this version...

-- 
~Vinod